In Groovy, you can create an array with different types by simply declaring the array with the desired types in square brackets separated by commas. Here's an example:
def myArray = ['string', 123, true, 3.14]
In the above example, the myArray variable is an array containing four elements of different types - a String, an Integer, a Boolean, and a Decimal.
You can also specify the types explicitly using the as keyword, like this:
def myArray = ['string' as String, 123 as Integer, true as Boolean, 3.14 as Double]
In this example, each element is explicitly cast to its respective type using the as keyword.
Another way to create an array with different types is to use a List, and then convert it to an array using the toArray() method. Here's an example:
def myList = ['string', 123, true, 3.14]
def myArray = myList.toArray()
In this example, myList is a List containing four elements of different types. The toArray() method is called on the list to convert it to an array, which is stored in the myArray variable.
Keep in mind that mixing different types in an array can make your code less readable and harder to maintain. So it's best to use this approach judiciously when necessary.